A point object $P$ moves towards a convex mirror with a constant speed $V$ , along optic axis. The speed of the image

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Is always $< V$

May be $>, = o r < V$ depending on the position of $P$

Increases as $P$ comes closer to the mirror

Decreases as $P$ comes closer to the mirror

answer is M.

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Detailed Solution

In case of a convex mirror, as the object moves from infinity to the pole of the mirror, the virtual image moves from its focus to the pole of the mirror. Thus speed of the image is always less than $V$ . However, this lower speed of image increases as $P$ comes closer to the mirror.

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